s) Find the number of molecules of nitrogen gas present in
112g of nitrogen
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5
Answer:
Answer: Atomic weight of Nitrogen is 28, and is diatomic. 1 mole=28gm contains 6.023*〖10〗^23 molecules.
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2
No of moles=112/28 =4
no of molecules in 1 mole=Avagadro number
hence
No of molecules in 4mole=4×Avagadro number
note Avagadro number=6.022×10^23
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